Method of packaging bottle caps



Dec.30, 1941. 2 I w. A. DAVIS 2,268,244 A METHOD OF PACKAGING BOTTLE CAPS Filed March 10, 1939 INVENTOR. WILL/M A. DA 1/15 ATTORNEYS.

Patented Dec. 30, 1941 William A. Davis, Hamilton, Ontario, Canada, t s assignor to Smith-Lee Company, Oneida N. Y.

ApplicationMarch 10, 192.9, Serial No. 261,023

'lClaimf (01:226 2) An object of the invention is to provide. such a container whereinmilk bottle caps may. be

packaged for shipment and storage and from which container they may be dispensed for use.

The container is of such a character that the caps will be protected against contamination by any sort of foul material and from the collection of bacteria and from moisture.

More particularly the container is provided with a heat sealing moisture resistant wax coating over the inner surface of its side and end walls, which coating protects the caps within the container from contamination and attack of moisture.

A further meritorious feature of my invention is the provision of an improved process or meth- 0d of packaging bottle caps within a container tainer will promote the formation of a moisture proof, wax, heat seal coat over the end closures of the container tube and the wall of the tube and therebetween.

Other objects, advantages, and meritorious features of this invention will more fully appear from the following description, appended claim and accompanying drawing, wherein:

Figure 1 is a perspective of a container tube fabricated and filled according to my improved process,

Fig. 2 is an elevation of one end of the tube,

Fig. 3 is a sectional view through the opposite end of the tube, and

Fig. 4 is a sectionalview through that end of the tube shown in Fig. 2.

Heretofore milk bottle caps have been packaged for shipment and storage in open end paper tubes. The wall of the tube was crimped inwardly at each end to hold the caps in place therein. When the caps were desired for use I propose to provide a tubular container which this cap is also indicated by the numeral l2.

foul injurious material "thereon prior to their use and which will facilitate dispensing of caps from the tubev for use. My container tube 10 may be formed of paper rolled up inthe conventional spiral manner but I provide a moisture resistant heat sealing wax coating over the inner face of the tube. Inthe drawing the thickness of this coating [2 has been substantially exaggerated for purposes of. disclosure. Actually, such coating would be very thin but sufiicient to provide a moisture resistant seal over such inner surface.

A closure cap is provided for each end of the tube. Preferably one of these caps I4 is cup shaped and received externally over itsend of the tube as shown in Figs. 1 and 3. This cap is sealed in place. The cap is wax coated at least over its inner surface and preferably wax sealed against the end of the tube. The wax coating on It, too, is shown in exaggerated thickness. This cap is further sealed in place by gummed tape or preferably a creped paper adhesive band l6 which extends about the cap and tube as shown in Fig. 3. The creping of the paper band permits it to be snugly drawn about the diameter of the cap and about the diameter of the tube though these will keep the caps in a sanitary sterile condition protecting them from deposit of bacteria or other diameters are different.

Milk bottle caps [8 are disposed within. the tube after the caps have beenwaxed treated and while they are in the heated state. Preferably they are waxed with a paraflin wax compound at a temperature of approximately 240 F. and the impregnated wax is pressed into the caps so as not to leave any excessive wax upon the outer surface of the caps. The same type of wax compound may be used upon the inner surface of the tube and upon the end closures. The end closure for the opposite end of the tube may be cup shaped outwardly and is inserted within such opposite end of the tube as shown in Figs. 2 and 4.

Such end closure 20 is also wax coated and the wax coating may extend over its side wall to seal against the side wall of the tube through such coating is not shown as so extending in Fig. 4. The wax coating of such end closure is also indicated by the numeral I2 and heat seals against the wax coating [2 within the interior of the tube. The side wall of the tube In is crimped over inwardly at 22 within the tube over i the side wall 2| of the inserted end closure 20 as shown in Fig. 4 holding such end closure in place.

Dairies generally make use of many difierent kinds of milk bottle caps which are printed to indicate the particular kind of milk within the bottle upon which the cap is used. To readily identify the particular kind of caps withinany tube I insert within the cup shaped end 010- sure 20 a'single milk bottle cap l8 with its printed side exposed to view. This cap I8 is held in place within the cup 20 by the crimped over side wall 22* of the tube as' shown in" Figs. 2 and 4.

I prefer to package the milk bottle caps while they are hot from the wax with which they are impregnated so that the retained heat. of? the packaged caps confined within the tube is sufficoatings of the two end closureswith the wax to hold five hundred caps and when the caps are desired for use in the capping machines the external closure I2 is removed and the caps are readily discharged through such end of the tube. This end of the tube has an internal diameter at the end which equals the internal diameter of the tube body at its mid-section which is not true of the opposite end of the tube where the side wall has been crimped into the tube and the caps are therefore" readily discharged from this free end of the tube. The wax coating over the inner face of the tube facilitates movement of the caps coating over the inner wall' o'f the tube body.

minimizing" the: possibility of the caps clogging up within the tube. What'Iclaim': j

That'metnodef packaging bottle caps which 

